param(
    [string]$JavaHome = $env:JAVA_HOME
)

$ErrorActionPreference = "Stop"
$root = Split-Path -Parent $PSScriptRoot
$srcRoot = Join-Path $root "src"
$buildRoot = Join-Path $root "build"
$classesRoot = Join-Path $buildRoot "classes"
$jarPath = Join-Path $buildRoot "order-service-demo.jar"
$manifestPath = Join-Path $buildRoot "manifest.mf"

New-Item -ItemType Directory -Path $classesRoot -Force | Out-Null

$javac = if ($JavaHome) { Join-Path $JavaHome "bin\\javac.exe" } else { "javac" }
$jar = if ($JavaHome) { Join-Path $JavaHome "bin\\jar.exe" } else { "jar" }

$sources = Get-ChildItem -Path $srcRoot -Recurse -Filter *.java | ForEach-Object { $_.FullName }
$javacArgs = @("-encoding", "UTF-8", "-d", $classesRoot) + $sources
& $javac @javacArgs

Set-Content -LiteralPath $manifestPath -Value "Main-Class: demo.orderservice.OrderServiceApplication`r`n" -Encoding ASCII
& $jar cfm $jarPath $manifestPath -C $classesRoot .

Write-Output $jarPath